i was JUST about to write and say WHAT, WHAT do they have in common? i haven't slept since you posted this riddle. the link is broken, but mostly it's just too, too puzzling. you're such a control freak!

First, Jack, let me apologize for the broken link. I didn't double check that when I finished posting. Entirely my fault, but the clues provided on even the busted link page will give you some necessary elements for completing the right answer--music faculty being the salient point here.

Secondly, I do NOT want to be a jerk about it (though clearly I have been). I just wanted a little interactivity. But I went about it passive-aggressively.

I do recongize that Lulu, Jack, and Sven are my most consistent commenters (and that I don't comment all the time with everyone else). I don't expect comments in every case, but this particular post did require a bit more than me just pushing the "content" out there.